This is the house that spite built.

A small plaque promises cold, hard cash in exchange for work by the famous pop artist.

One of America's most historic homes also holds a startling literary legacy.

Memorial to a beloved puppeteer as well as all street performers.

One of the last remaining movie theatres in the country that features a rear-projection system.

This plaque is dedicated to one-half of the Magliozzi brothers and their hit radio show, 'Car Talk.'

This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

A Harvard-area eatery preserves the uncovered tiles of its century-old predecessor.

The headquarters of one of the world’s longest-running humor magazines bears a noticeable resemblance to a head wearing a Prussian helmet.

An alley way dedicated to graffiti and street art is a constantly changing street gallery.

One man's psychedelic fence is painted with his cacophonous folk art musings on the world.

A tiny monument to the classic American candy.

Whimsical cookie-themed plaques mark the birthplace of the Fig Newton.

This plaque commemorates the call between Alexander Graham Bell and Thomas A. Watson.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

This impressive Boston holy house is the American mecca for Christian scientists.

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

One of the now-less-hidden floral gems of the "Emerald Necklace."

The oldest playground in America.

The 1920s child prodigy author was last seen here at her Brookline home before vanishing at age 25.

This Dutch-styled residential building was originally a cocoa company's World's Fair showpiece.

Commemorating the 1948 creation of the Jimmy Fund, a Boston-based cancer charity.